I have seen my own wings in three different dreams They are leathery, but more "butterfly" shaped than "bat" shaped. Something like the wings of dragons in Final Fantasy games, or the windriders in WoW. In two of these dreams the wings were grey, in the third they were black and purple.

I would grow Dragon wings that were blue in colour and glistened in the sun and projected the pattern of the stars at night in a see through fashion. I would be able to soak in energy through the wings as I fly through the sky in total freedom.